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The Fusion Energy Sciences (FES) Program of the Office of Science (SC), U.S. Department of Energy (DOE), hereby announces its interest in receiving grant applications for collaborative research in fusion energy science as part of the DIII-D national research program. The mission of the DIII-D program is to establish the scientific basis for the optimization of the tokamak approach to fusion energy production. The primary means to accomplish this mission is research utilizing the DIII-D tokamak to develop the ultimate potential of the tokamak concept as a magnetic confinement system.

The Fusion Energy Sciences (FES) of the Office of Science (SC), U.S. Department of Energy (DOE), herby announces its interest in receiving applications to carry out experimental research in magnetic fusion energy sciences on long-pulse overseas stellarator facilities, namely Wendelstein 7-X (Germany) and the Large Helical Device (LHD - Japan). The research should be related to the planning, execution, and analysis of experiments concerning the topical areas described below. The FES Burning Plasma Science: Long Pulse portfolio supports U.S. researchers who work in collaboration with foreign scientists to explore critical science and technology issues at the frontiers of magnetic fusion research. These collaborations take advantage of the unique capabilities of the most advanced overseas research facilities.

The Fusion Energy Sciences (FES) program in the Office of Science (SC), U.S. Department of Energy (DOE), announces its interest in receiving new or renewal grant applications for theoretical and computational research relevant to the U.S. magnetic fusion energy sciences program. Applications selected in response to this Funding Opportunity Announcement (FOA) will be funded in Fiscal Year 2018, subject to the appropriation of funds by the Congress. The specific areas of interest are: 1. Macroscopic Stability 2. Confinement and Transport 3. Boundary Physics 4. Plasma Heating & Non-inductive Current Drive, and 5. Energetic Particles

The Fusion Energy Sciences (FES) program in the Office of Science (SC), U.S. Department of Energy (DOE), announces its interest in receiving new or renewal grant applications for theoretical and computational research relevant to the U.S. magnetic fusion energy sciences program. Applications selected in response to this Funding Opportunity Announcement (FOA) will be funded in Fiscal Year 2018, subject to the appropriation of funds by the Congress. The specific areas of interest are:

SC hereby invites grant applications for support under the Early Career Research Program in the following program areas: Advanced Scientific Computing Research (ASCR); Biological and Environmental Research (BER); Basic Energy Sciences (BES), Fusion Energy Sciences (FES); High Energy Physics (HEP), and Nuclear Physics (NP). The purpose of this program is to support the development of individual research programs of outstanding scientists early in their careers and to stimulate research careers in the areas supported by SC.

The major investments made to upgrade the MAST-U and NSTX-U facilities were strongly motivated by an important observation identified in both machines, which showed that energy confinement in spherical tokamaks may scale more favorable than for conventional aspect ratio tokamaks as collisionality is reduced. If the present empirical scalings hold, then STs may provide a much more compact design path to future fusion reactors than conventional tokamaks. At present, the interplay between collisionality, turbulent transport, wall conditioning (e.g., lithium coatings, boronization) and/or density control at low aspect ratio represents the forefront of ST research. The complementary capabilities of the MAST-U and LTX-β facilities allow for this interplay to be explored. Late in the three year period of these proposals FY 2018 - FY2020 the MAST-U facility is slated to utilize strong cryopumping capabilities in its world class advanced divertor to control plasma density and hence collisionality. Alternatively, the neutral beam heated and fueled LTX-β will control density using lithium wall coatings, which dramatically reduces the flux of cold neutral atoms that are recycled back into the plasma after their initial expulsion. In addition to plasma performance, the compact geometry of MAST-U and its future enhanced auxiliary heating power will result in exhaust power reaching plasma facing components that is in excess of that expected in ITER. This coupled with MAST-U's unprecedentedly flexible divertor geometry, makes it a world leading facility for the study of power exhaust and plasma material interactions.

The Fusion Energy Sciences (FES) program of the Office of Science (SC) and the Defense Program (DP) of the National Nuclear Security Administration (NNSA), both of the U.S. Department of Energy (DOE), jointly announce their interests in receiving grant applications for new awards and grant renewals for research in the SC-NNSA Joint Program in High-Energy-Density (HED) laboratory plasmas. All individuals or groups planning to submit applications for new or renewal funding in Fiscal Year 2018 should submit in response to this Funding Opportunity Announcement (FOA). The specific areas of interest are: 1. HED Hydrodynamics 2. Radiation-Dominated Dynamics and Material Properties 3. Magnetized HED Plasma Physics 4. Nonlinear Optics of Plasmas and Laser-Plasma Interactions 5. Relativistic HED Plasmas and Intense Beam Physics 6. Warm Dense Matter 7. High-Z, Multiply Ionized HED Atomic Physics 8. Diagnostics for HED Laboratory Plasmas More specific information on each area of interest is outlined in the general and program specific supplementary information provided.